| 6 | ( | 1 | − | 3 | x | ) | − | 3 | ( | 3 | − | 5 | x | ) | − | 4 | ( | 5 | + | 2 | x | ) | = | 1 |
| Left side of the equation = | 6 | × | 1 | − | 6 | × | 3 | x | − | 3 | ( | 3 | − | 5 | x | ) | − | 4 | ( | 5 | + | 2 | x | ) |
| = | 6 | − | 18 | x | − | 3 | ( | 3 | − | 5 | x | ) | − | 4 | ( | 5 | + | 2 | x | ) |
| = | 6 | − | 18 | x | − | 3 | × | 3 | + | 3 | × | 5 | x | − | 4 | ( | 5 | + | 2 | x | ) |
| = | 6 | − | 18 | x | − | 9 | + | 15 | x | − | 4 | ( | 5 | + | 2 | x | ) |
| = | - | 3 | − | 3 | x | − | 4 | ( | 5 | + | 2 | x | ) |
| = | - | 3 | − | 3 | x | − | 4 | × | 5 | − | 4 | × | 2 | x |
| = | - | 3 | − | 3 | x | − | 20 | − | 8 | x |
| = | - | 23 | − | 11 | x |
| - | 23 | − | 11 | x | = | 1 |
| - | 11 | x | = | 1 | + | 23 |
| - | 11 | x | = | 24 |
| - | 24 | = | 11 | x |
| 11 | x | = | - | 24 |
| x | = | - | 24 | ÷ | 11 |
| = | - | 24 | × | 1 11 |
| x | = | - | 24 11 |
| x | = | - 2.181818 |